The Gizmodo guide is old. They don't update their guides often, and they just use what people here develop.
If you follow Mechdrew's guide and use the current version of NBM/NBI you have the newest, best version of the kext you need.
You adjust the track pad in system preferences.
Mini 9 | OS X 10.6.7 | NBI 20100616212351| BIOS 05 | 32 GB Runcore | 2 GIGS RAM
10V | OS X 10.6.7 | NBI 20100616212351 |BIOS 06|160 GB|1 GIG RAM| 6 Cell Dell Battery
Back up Mini 9| OS X 10.6.7| NBI 20100616212351| BIOS 05 | 32 GB SuperTalent | 2 GIGS RAM